The testing continues even at 32,000 feet. Mumei and his classmates are especially challenged when their plane begins to experience mysterious turbulence. Meanwhile, while on an outing with his classmate, Haku, Mumei encounters a new rival. Who is this young man and why does he know so much about pens?
Oh! Kou-chan has plans to study! Right?
لـ كو-تشان مخططات بالدراسة، صحيح؟
Ah! Kou-chan muss lernen, stimmt’s?
¡Kou-chan tiene que estudiar, ¿verdad?!
¡Kou-chan tiene que estudiar, ¿verdad?!
Ah, Kou-chan diceva 
di avere tanto tanto da studiare.
Ah! A Kou-chan disse que vai estudar, não é?!